45倍中波红外连续变焦光学系统
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中国科学院大学,中国科学院长春光学精密机械与物理研究所,中国科学院长春光学精密机械与物理研究所,中国科学院长春光学精密机械与物理研究所,中国科学院大学,中国科学院长春光学精密机械与物理研究所

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Jilin province science and technology development plan item (20090557)


MWIR continuous zoom optical system with magnification of 45
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University of Chinese Academy of Sciences,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences

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    摘要:

    红外连续变焦光学系统具有很多优势,介绍了一种可以实现高变焦比的设计方法.据此设计了一个系统,其由八片透镜组成,工作波段为3.7~4.8μm,可实现10~450mm连续变焦.系统在全焦距范围内奈奎斯特频率处的MTF值均大于0.3,系统F数为4,且满足冷光阑效率100%的要求.

    Abstract:

    The MWIR continuous zoom optical system has many advantages. A method for designing the system with large zoom range was introduced. Then, a system with 8 lenses was designed. The system works in the wavelength range of 3.7~4.8μm with 10~450mm continuous zoom, and the MTF value in Nyquist limit (16lp/mm) is more than 0.3 over the full range. The F/number of the system is 4. It can satisfy 100% cold shield efficiency.

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周昊,刘英,孙强,李淳,张晓龙,黄剑波.45倍中波红外连续变焦光学系统[J].红外与毫米波学报,2014,33(1):68~71]. ZHOU Hao, LIU Ying, SUN Qiang, LI Chun, ZHANG Xiao-Long, HUANG Jian-Bo. MWIR continuous zoom optical system with magnification of 45[J]. J. Infrared Millim. Waves,2014,33(1):68~71.]

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  • 收稿日期:2012-10-20
  • 最后修改日期:2012-12-14
  • 录用日期:2012-12-17
  • 在线发布日期: 2014-04-03
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